Engine



Jan. 12, 1932. A. N. SHOLKING ENGINE Filed Nov. '7, 1930 4 Sheets-Sheet T 0 I. n e w I Attorney Jan. 12, 1932 A. N. SHOLKING 1,840,919

ENGINE Filed Nov. 7, 1930 4 Sheets-Sheet 2 4X /4 W k W \V v Invenlor kg I 4. MAYO/Z72? q By v Alfomcy Jan. 12, 1932.

A. N. SHOLIKING ENGINE Filed Nov. 7, 1930 4 Sheets-Sheet 5 Attorney Inventor 40 Figure 3 is adetailed View, incrosssection the side thereof opposite to the side in which Patented Jan. 12, 1932 I V i ,AneAbY 1v. s oLKInG, or ivIANI-LA, PHILIPPINE 1SLANDS, w i ENGINE Application filed Nove nher 7, 1930, Serial'No. 494,119.

This invention relates to an internal comnec-tingrods with the disks which are fixed on bustion engine andmore particularlyto new, the driven shaft; I and useful improvements in devicesof this Figure 6 is a vertical sectional view taken characterof the two cycle typeiand has for substantially on the line 6-6 of Figure 1- V one of its important objects to provide, in a looking in the direction-indicated by the ar= 55 manner as hereinafter set forth, an'e'ngine emrows. 7 e I r bodying a reciprocating inner cylinder in Referring the drawings in detail, it will which is mounted'for reciprocation a piston be seenthatthe reference numeral 1 desigwhich cooperates with the reciprocating cylnates a portion of a casing in which is jourinder to compress the fuel charge to a degree naled the driven shaft 2 which is of hollow which Will cause the ignition thereof, thus construction and'has formed integrally theredispensing with the use of a means such as on the flange 8. An outer stationarycylinspark plugs for ignitingthe charge. der l-is rigidly mounted on the casing lby Another important object of the invention suitable bolts 5 and the stationary cylinder 4 V is to provide an engine of the character deis provided with an enlarged lower end por- 65 scribed which includes meansfor compressing tion 6." The stationary-cylinder 4' is further the fuel chargebefore charge enters the comprovided, in an intermediate portion, with bustion chamber of the engine. r v an exhaust port 7 and adjacent its upper end Other objects of the invention are to prO- the stationary cylinder tis further provided vide an internal combustion engine Which will with an intake port 8. An integralflange 9 70 be simple in construction,strong, durable, eiliis formed on the outer periphery of the sta-V cient in operation and which may be manutionary cylinder t'adj acent the intake port 8 factured at low cost. and'below said intake-ports a All of the foregoing and still further ob- A head designated generally by the refer- 75 jects and advantages of the invention may ence numeral 10 is detachably mounted over become apparent from a study of the followthe upper end portion of the stationary cylining specification, taken in connection With the. der l and comprises the depending skirt poraccompanying drawings, wherein like chartion 11 which is disposed in spaced, concenacters of reference designate corresponding tric relation to the upperiend portion of the parts throughout the several views, and stationary cylinder 4. The skirt 11 has 80 wherein; j a formed integrally on its lower end an in- V Figure l'is a'view in vertical section shoW- turned flange 12 for rest on the flange 9'and ing the arrangement of the cylinders andthe bolts 13 pass through the flanges 9 and '12 for pistons which form an essential portion of securing the head 10- on thestationary cylinthe invention. der 4. The upper wall 14' of the head 10 is Figure 2 is a view in vertical section showspaced above the open upper end of the, sta ing the means for operatively connecting the tionary cylinder 4 as clearly seen in the'draw reciprocating cylinder and the piston with the ings. r I drivenshaft. The stationary cylinder 4 is provided, on

through the driven shaft and showing, in side 7 the exhaust port 7 is located, with an intake elevation, one of the disks having cam port 15 which periodically communicates grooves therein for the reception of theconwith the hambe 16 in the lower portion: of necting rods of the reciprocatingcylinder and the stationarycylinder 4. The chamber 16 a the piston. I j constitutes a compression'chamber to be'more 95 Figure i is a horizontal cross sectional view fully hereinafter described relative to its taken substantially on the line H of Figfunction and a by-pass 17 (these Figures 4 me 1. Y and 1) communicate at its lower end, with Figure 5 is a detail view in section showing the chamber 16 and atitsupper end with the the means for operatively engaging the concompression'chamber 18 provided by the up- 10E per end portion of the stationary cylinder 4 and the head 10.

An inner cylinder 19 is mounted for reciprocation in the stationary cylinder 1 and is provided, adjacent its upper end, with an intake port 20 for registry with the port 8. The reciprocating cylinder 19 is further pro vided at a point in spaced relation below the port 20, with an exhaust port 21 for registry with the exhaust port 7. On its other side the reciprocating cylinder 19 is provided with a port 22 for registry with the port 15 for periodically admitting the fuel charge to the chamber 16 through the port 15.

A piston 23 is mounted for reciprocation in the reciprocating cylinder 19 and is provided with a concave upper end 24 which provides a compression chamber 26 between the upper ends of the piston 23 and the upper end of the reciprocating cylinder 19.

A pair of spaced, opposed disks 27 are fixed on the driven shaft 2 in abutting engagement with opposite sides of the flange 3 and the disks are retained in position by suitable collars 28. On the outer sides each of the disks 27 is provided with a cam groove 29 and on their inner or opposed sides the disks 27 are provided with the oomplemental cam grooves 30. The cam grooves 29 and 30 are of the configuration illustrated to advantage in Figure 30f the drawings and the grooves 30 are disposed at right angles to the grooves 29. A connecting rod 31 extends slidably through the outer wall 32 of the casing 1 and has one end threadedly connected to the piston 23, as at 33. The other end portion of the piston rods 31 has mounted transversely therein and projecting from the opposite sides thereof a pintle 34 the end portion of which are disposed in the cam grooves 30 and has mounted thereon suitable anti-friction bearings 35 for travelling in the grooves 30.

Sleeve bearings 36 extend through the outer wall 32 of the casing 1 on opposite sides of the piston rod 31 and slidably receive the connecting rod 37 having one end threadedly connected to the lower end portion of the reciprocating cylinder 19, as at 38. A pintle 39 extends laterally from the other end portion of each of the connecting rods 37 into the adjacent end groove 29 and anti-friction bearings 40 are provided on the pintle 39 for travel in the cam grooves 29.

In operation,the arrangement of the cam grooves 29 and 30 will cause the piston 23 and the reciprocating cylinder 19 to move in opposite directions simultaneously relative to each other. Thus, when the piston 23 moves upwardly and the reciprocating cylinder 19 moves downwardly to the position illustrated in Figure 2 of the drawings, a partial vacuum will be formed in the chambers 16 and 18 and when the port 22 registers with the port 15 the fuel charge from a suitable manifold (not shown) will rush into the chamber 16 beneath the piston 23. A portion of this fuel charge passes through the by-pass 17 into the compression chamber 18. It will be seen that in this position the piston 23 is disposed above will be compressed in the chambers 16 and 18.

ll hen the reciprocating cylinder 19 reaches the limit of its upward movement the port 20 brought in o registry with the port 8 and the compressed fuel from the chambers 16 and 18 rushes into the reciprocating cylinder 19 above the piston 23, the fuel from chamber 16 passing through the bypass 17. The piston 23 and the reciprocating cylinder 19 then move toward each other and compress the charge which has entered the reciprocatcylinder 19 to such a degree that same will be caused to ignite, it being understood, of course, that when the reciprocating cylinder 19 moves downwardly on this compression stroke that communication between the port 8 and 20 is broken. As will be apparent, when the fuel charge in the reciprocating cylinder 19 ignites, the piston 23 is again driven downwardly and the reciprocating cylinder 19 is driven upwardly and the ex haust port 21 therein is brought into registry with the exhaust port 7 in the stationary cylinder 4. This occurs slightly in advance of the registering of the ports 20 and 8 on the upstroke of the reciprocating cylinder 19. The new charge entering the upper portion of the reciprocating cylinder 19 blows the exhaust gases out through the exhaust ports 21 and 7. At this point in the operation of the engine the piston 23 is disposed below the exhaust port 21 in the reciprocating cylinder 19, as clearly seen in Figure 1 of the drawings. As will be apparent, reciprocation of the piston 23 and the cylinder 19 will impart 1 rotary movement to the shaft 2.

The arrangement herein illustrated and described is particularly intended for use in the construction of engines of the radial type and any number of the cylinders may be provided but the invention may be incorporated in other types of internal combustion engines if it is so desired.

It is believed that the many advantages of an internalcombustion engine constructed in accordance with this invention will be readily ""-l"llth 'th"f'l unoeistcoc, ant a ou n e pie eriec em bodiment of the invention is as illustrated and described, it is to be understood that changes in the detalls of construction may be had which will fall within the scope of the intention as claimed.

What is claimed is:

1. An engine of the character described comprising a casing, a shaft journaled in the casing, a stationary cylinder mounted on the casing having a compression chamber in each end portion, and further having a by-pass communicating with the compression chambers, the stationary chamber being still further provided with a port communicating with one of the compression chambers, a'cyl- 7 ner to actuate said shaft, said means comprising a pair of faces, opposed disks fixed on the shaft and having complementary cam grooves on their opposed sides and further having cam grooves on their outer sides disposed at right angles to the complementary cam grooves, a rod rigidly connected to the piston and extending slidably into the easing, a cross pin on the rod having its end portions disposed for travel in the complementary end grooves for operatively connecting the rod to the disks, rods rigidly connected to the reciprocating cylinder at diametrically opposite sides thereof and extending slidably into the casing adjacent the outer sides of the disks, and pintles extending laterally from the last named rods and extending into the adjacent cam grooves in a manner to operatively connect the last named rods to the disks.

2. An engine of the character described comprising a casing, a shaft journaled in the casing, a stationary cylinder mounted on the casing having a compression chamber in each end portion and further havinga fuel intake port communicating with one of the compression chambers, the stationary cylinder being further provided with a bypass extending from said one compression chamber to the other compression chamber and being so further provided with an exhaust port intermediate the compression chambers, a cylind-er mounted for reciprocation in the stationary cylinder and having an intake port therein adapted to be periodically brought into communication with said other compression chamber for the passage of fuel into the reciprocating cylinder, said reciprocating cylinder being so provided with a port for periodical registration with the fuel intake port in the outer cylinder for the passage of the fuel charge into the one compression chamber, the reciprocating cylinder being so further provided with an exhaust port for -pe'riodicalcregistration with exhaust port an the stationary =cylinder, a plstonr mounted for reciprocation: 1n the reciprocating cylinderand havingafconcavity inone end, a piston rod rigidly conn'ected to the other end iOf' the piston iand' extending slidably into-the casing, afipair of faces, opposed 'disks fixed on the shaft, and extending on opposite sidesof the piston rods, com plementary cam" grooves in the opposed sides ofthedisks, a cross pin fixed tranversely in: the pistonwrods and extending into the complementary: -grooves,-' bearings mounted ,on' the end portions of the cross p ns for travel insthe complementary grooves, rods rigidly connected to diametrically opposite sides of the reciprocating cylinder and extending slidably into the casing, =pintleslzextending laterally. from the last named rods, the-outer sidese'of the disks being further provided with cam grooves disposed substantially "at rightiangles to the first named cam grooves,

the pintles extending into the last named cam groovesin a manner to-operatively connect the. last named rodsto the disks, and antifrliction bearings mounted on the plntlesfor travel in the last named cam grooves.

' 3..An. engine" of the character described comprising a casing,:a shaft journaled' in the I casing, a stationarycylinder mounted on the casing: andprojecting therefrom and having c a compressron'chamber in its inner and outer end 'POItlODS lZhGi statlonarycylinder being further provided withcan intake port for the'..passage of fuel into the inner compression. chamber and beingffurther provided with a by-pass communicating withthe inner and outer compression chambers, the stationary cylinder being further provided with an exhaust port intermediate the compression chambers and with a port adjacent its outer end, an integral circumferentially ex- 7 tending flange on the stationary cylinder intermediate the exhaust port'and the last named port, a head disposed over the outer end portion of the stationary cylinder and including a skirt portion disposed in spaced concentric relation to the outer end portion of the stationarycylinder and further in cluding an end wall disposed in spaced relation to the outer end of the stationary cylinder, an integral inturned flange on the skirt for abutting engagement on the flange of the stationary cylinder, securing elements clamp- I ing the flanges together, a cylinder mounted for reciprocation in the stationary cylinder and having an intake port in one end portion thereof for periodical'registration with the last named port in the stationary cylinder for the passage of fuel from the outer compression chamber into the reciprocating cylinder, said reciprocating cylinder being further provided with a. port for periodical registration with the first named port in the stationary cylinder for the passage of fuel into the inner compression chamber and being so further provided with an exhaust port for periodical registration with the exhaust port in the stationary cylinder for the passage of gases outwardly from the reciprocating cylinder, a pistpn mounted for reciprocation in the reciprocating cylinder, and means operatively connecting the piston and the reciprocating cylinder to the shaft for actuating said shaft and for causing movement simultaneously in opposite directions of the piston and the reciprocating cylinder relative to the other, said means comprising a pair of faces, opposed disks fixed on the shafts and having complementary cam grooves in their opposed sides and further having cam grooves in their outer sides disposed at right angles to the first named cam grooves, a piston rod rigidly connected to the pistons and extending slidably into the casing and between the disks, a cross pin mounted on the piston rods and extending into the first named cam grooves for operatively connecting the piston rods to the disks, hearings on the portions of the cross pins, rods rigidly connected to diametrical sides of the reciprocating cylinder and extending slidably into the casing adjacent the outer sides of the disks, pintles extending laterally from the last named rods into the last named cam grooves, for operatively connecting the last named rods to the disks and bearings mounted on the pintles for travel in the last named cam grooves.

In testimony whereof I aflix my signature.

ARCADY N. SHOLKING. 

